The swim is the discipline most triathletes improve the least between races. A coach on deck helps, but most self-coached athletes never get that kind of feedback. Smart swim goggles put real-time data in your line of sight while you swim: pace, stroke rate, heart rate, and in open water, a compass that keeps you swimming straight. If you’ve been curious whether the tech lives up to the pitch, this is a look at smart swim goggles from someone who has been racing in them.
TL;DR
FORM makes the best smart goggles for triathletes right now. The free tier covers the basics well, and SwimStraight (the open water compass) is now free on all models. Premium unlocks structured workouts and HeadCoach technique coaching for about C$11.59/month. HOLOSWIM is worth a look if you want everything included with no subscription, though the missing compass is a real gap for open water racing.
Key Takeaways
- Real-time pace, heart rate, and stroke data appear in your lens while you swim
- FORM’s SwimStraight compass is free on all models and genuinely useful in races
- The FORM lineup now runs from C$199 (LT) to C$339 (PRO)
- Premium is optional but unlocks the features that actually make you faster
- HOLOSWIM is a no-subscription alternative, but lacks a built-in compass for open water
What Smart Swim Goggles Actually Do
Running and cycling have always had an easy feedback loop. Glance at your watch, check your pace, adjust. Swimming doesn’t work that way. There are no walls to push off, no easy way to see your watch mid-stroke, and by the time you’ve stopped at the end of a length to check the clock, the moment has passed.
Smart swim goggles fix that. A small display built into one lens shows your data in real time as you swim: pace per 100m, lap count, stroke rate, distance, rest time, and SWOLF (a measure of swim efficiency). You glance up during a stroke and it’s just there. No stopping, no wrist-checking, no losing count.
The tech pack is a small unit attached to one eye cup. It’s noticeable the first few sessions, then you stop thinking about it. The display sits at the edge of your vision, not in the middle, so it doesn’t interfere with sighting or technique.
The FORM Lineup in 2026
FORM is a Vancouver-based company and the clear category leader for smart swim goggles. They launched the original model in 2019 and have been iterating since. As of mid-2026, the lineup has three current models, with the Smart Swim 1 still available but increasingly hard to recommend given the pricing of the newer options.
Smart Swim 2 LT — C$199 (US$149)
The entry point. The LT has the full AR display, SwimStraight open water compass, HeadCoach technique coaching, and access to structured workouts via Premium. The one thing it doesn’t have is a built-in heart rate sensor.
For a lot of swimmers, that’s fine. You can still track pace, stroke rate, distance, and direction. Pair it with your Garmin for GPS data in open water and you’re covered. If you want HR data in the pool, you’d need an external strap, which adds friction.
One honest note on fit: the LT uses an older eye seal design. It works, but it’s less comfortable on longer swims. FORM sells a more comfortable set of eye seals for about C$15 — worth grabbing alongside the LT.
Smart Swim 2 — C$269 (US$199)
This is the sweet spot for most triathletes. The Swim 2 adds optical heart rate built directly into the goggles, so you can train by zone in the pool without any extra hardware. It also uses updated contoured eye seals that are more comfortable out of the box.
In open water, it captures heart rate, stroke rate, and time on its own. Pair it with a Garmin or Apple Watch and you also get GPS-powered distance and pace in your lens. For a triathlete training for a half or full, that combination is hard to argue with.
Smart Swim 2 PRO — C$339 (US$259)
Same feature set as the Swim 2, with one meaningful upgrade: Corning Gorilla Glass lenses instead of standard plastic. That’s more scratch and impact resistance, better optical clarity, and UV protection. The PRO also swaps the factory anti-fog coating for a refillable spray solution, which lasts longer and is easy to refresh.
If you train hard or race frequently, the lens durability alone justifies the extra spend over time. If you swim three times a week for fitness, it’s probably more than you need.
The Subscription Question
This is the part most reviews gloss over, so let’s be direct about it.
The free tier covers basic swim tracking: pace, splits, distance, stroke detection, and SwimStraight. That’s a solid amount. Premium adds structured workouts from a library of 1,500+, HeadCoach technique coaching, 45+ training plans, TrainingPeaks integration, and the workout builder. It costs C$11.59/month billed annually, or C$19/month month-to-month. New customers get one month free.
The honest math: if you use the structured workouts and coaching, Premium pays for itself quickly. If you just want data on your free swims and a compass for races, the free tier is genuinely usable.
Over two years, Premium adds roughly C$278 on top of the goggle price. That’s the real cost of ownership to factor in when comparing FORM to no-subscription alternatives.
SwimStraight: The Feature That Changes Open Water Racing
Sighting is expensive. Every time you lift your head to sight a buoy, you disrupt your stroke, create drag, and lose momentum. Most triathletes sight far more than they need to because they’ve lost their line and are correcting.
SwimStraight is FORM’s open water compass, built into the lens. You set your heading before the swim, and a compass display keeps you on course as you go. The result in races is that you can sight way less, stay in your stroke rhythm, and stop zigzagging between buoys.
It’s now free on all FORM models. No Premium subscription required. That alone makes the LT at C$199 a compelling option for any triathlete who races open water.
On the race legality question: FORM goggles are approved by World Triathlon, PTO/T100, USA Triathlon, and British Triathlon. For Ironman-branded events, FORM recommends confirming with the specific race director. Most athletes who’ve raced in them haven’t had issues, but it’s worth a quick check.
HeadCoach and Technique Feedback
Most swimmers have technique problems they don’t know about because no one is telling them mid-swim. HeadCoach addresses that.
The system uses the goggle’s sensors to track head pitch (how you position your head in the water), roll (how much you rotate side to side), and breathing timing. It scores these in real time and can display cues in your lens as you swim, so you get feedback on the thing that actually needs fixing, at the moment you’re doing it.
Post-swim, the app breaks down your technique with video references and improvement suggestions. It’s not a replacement for a swim coach, but for a self-coached athlete with no one on deck, it’s the next best thing.
HeadCoach requires Premium. If you’re using FORM primarily for data and the compass, you won’t miss it. If technique is what’s holding your swim back, it’s probably the most valuable feature in the subscription.
HOLOSWIM: The No-Subscription Alternative
HOLOSWIM is a Chinese brand that has built a legitimate product around one angle: everything included, no subscription, ever.
The 2 Pro tracks 12 real-time metrics including stroke rate, SWOLF, distance, and pace. Training plans and AI post-swim analysis are included in the free app. It pairs with Garmin and Apple Watch for GPS data in open water. Battery runs to about 4 hours, which covers most training sessions but would be cutting it close for a longer open water workout.
The trade-off for triathletes is clear: there’s no built-in compass. Open water mode exists, but direction guidance depends entirely on your paired watch. If you race open water and sighting is a problem, HOLOSWIM doesn’t solve that. FORM does.
The other honest caveat is that HOLOSWIM is a newer brand with a thinner track record. FORM has been in this category since 2019 with a large user base and regular software updates. That matters when you’re spending C$200+ on training hardware.
Price: C$199 on Holosport Website
Quick Comparison
| FORM LT | FORM Swim 2 | FORM Swim 2 PRO | HOLOSWIM 2 Pro | |
|---|---|---|---|---|
| Price (CAD) | C$199 | C$269 | C$339 | C$199 |
| AR Display | Yes | Yes | Yes | Yes |
| Built-in HR | No | Yes | Yes | No (external strap) |
| Open water compass | Yes (free) | Yes (free) | Yes (free) | No |
| Structured workouts | Premium | Premium | Premium | Included |
| TrainingPeaks sync | Premium | Premium | Premium | No |
| Subscription | Optional | Optional | Optional | None |
| Battery life | 14 hours | 12 hours | 12 hours | 4 hours |
| Lens | Standard | Standard | Gorilla Glass | Standard |
Which Model Is Right for You
Triathlete who races open water: Smart Swim 2 at C$269. Heart rate for zone-based training in the pool, SwimStraight free for races. The full package without overpaying for Gorilla Glass.
Pool-only swimmer, subscription-averse: HOLOSWIM is worth a look. The feature set is solid, the price is lower, and you’ll never pay a monthly fee. Just be realistic about the open water limitations.
Budget entry into FORM: LT at C$199. SwimStraight is free. Add Premium later if you find yourself wanting the structured workouts.
Heavy trainer or frequent racer: PRO at C$339. The Gorilla Glass lens pays off over time if you’re in the water five or six times a week.
If you’re training by heart rate in the pool, the HR Zone Finder takes 30 seconds to set up your zones.
Related Posts
Training with heart rate in the pool: How to Read Your Heart Rate Zones (and Why Most People Get Them Wrong)
Before your first open water race: Open Water Swimming: 5 Things Nobody Tells You Before Your First Race
New to triathlon distances: Sprint vs Olympic vs Half vs Full: Triathlon Distances Explained
Sources
FORM Canada — product pages and pricing
DC Rainmaker — FORM Smart Swim 2 PRO In-Depth Review (July 2025)
